Development of the choice procedure for separation method of section iron using complex criteria of materials destruction

Abstract

Cluster analysis of materials destruction criteria was performed. Yield point is considered to be the most informative criterion among traditional ones. “Scale” is considered to be the most informative criterion among complex ones. Besides, complex criteria such as crack proliferation criterion and brittleness criterion are the basic informative indicators. When adding any other complex criterion (nucleation or “scale”) they form the most informative sets of minimal power, providing materials classification according to their separation sensitivity with a given reliability. Taking into account the data received, recommendations for choice of separation method of section iron were developed. Value of maximum rolling plasticity, which was defined using a special method, represents an indicator, suitable for ranging rolling material according to the separation capacity